Home / 10,428.47-14,391.64-5,713.05

Finding the Fourth Proportional to 10,428.47, 14,391.64 and 5,713.05

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Solution

The fourth proportional to 10,428.47, 14,391.64 and 5,713.05 is: 7,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.47 : 14,391.64 = 5,713.05 : x
  2. Step 2: Convert to fraction form
    10,428.47/14,391.64 = 5,713.05/x
  3. Step 3: Cross multiply
    10,428.47x = 14,391.64 × 5,713.05
  4. Step 4: Simplify right side
    10,428.47x = 82,220,220.01
  5. Step 5: Solve for x
    x = 82,220,220.01/10,428.47
  6. Step 6: Final answer
    x = 7,884.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.